1 EXHIBIT 12.1 STATEMENT OF COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES FOR THE YEARS ENDED DECEMBER 31, ----------------------------------------------------------- Q1 Q1 1996 1997 1998 1999 2000 2001 2000 --------- --------- --------- --------- --------- --------- --------- EARNINGS: Pre-tax income $ 16,737 $ 28,312 $ 50,989 $ 94,176 $ 75,707 $ 16,113 $ 30,235 Fixed charges 3,597 10,528 26,338 94,864 128,079 31,796 31,295 Less: Preferred stock dividends - - (3,234) (4,144) (4,144) (1,036) (1,036) Less: Capitalized interest - - (262) - - - - --------- --------- --------- --------- --------- --------- --------- Net fixed charges 3,597 10,528 22,842 90,720 123,935 30,760 30,259 --------- --------- --------- --------- --------- --------- --------- EARNINGS $ 20,334 $ 38,840 $ 73,831 $ 184,896 $ 199,642 $ 46,873 $ 60,494 ========= ========= ========= ========= ========= ========= ========= FIXED CHARGES: Interest expense $ 2,837 $ 9,330 $ 20,267 $ 81,633 $ 112,433 $ 28,533 $ 27,921 Preferred stock dividends - - 3,234 4,144 4,144 1,036 1,036 Capitalized interest - - 262 - - - - Amortization of debt costs 252 329 865 4,930 6,254 1,562 1,528 Interest factor of rental expense 508 869 1,710 4,157 5,248 665 810 --------- --------- --------- --------- --------- --------- --------- TOTAL FIXED CHARGES $ 3,597 $ 10,528 $ 26,338 $ 94,864 $ 128,079 $ 31,796 $ 31,295 ========= ========= ========= ========= ========= ========= ========= RATIO OF EARNINGS TO FIXED CHARGES 5.7 3.7 2.8 1.9 1.6 1.5 1.9 ========= ========= ========= ========= ========= ========= =========